1 // SPDX-License-Identifier: GPL-2.0-only
19 #include <video/of_videomode.h>
20 #include <video/videomode.h>
25 	struct drm_encoder encoder;  member
39 	return container_of(e, struct exynos_dpi, encoder);  in encoder_to_dpi()
68 	if (ctx->vm) {  in exynos_dpi_get_modes()
71 		mode = drm_mode_create(connector->dev);  in exynos_dpi_get_modes()
73 			DRM_DEV_ERROR(ctx->dev,  in exynos_dpi_get_modes()
77 		drm_display_mode_from_videomode(ctx->vm, mode);  in exynos_dpi_get_modes()
78 		mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;  in exynos_dpi_get_modes()
83 	if (ctx->panel)  in exynos_dpi_get_modes()
84 		return drm_panel_get_modes(ctx->panel, connector);  in exynos_dpi_get_modes()
93 static int exynos_dpi_create_connector(struct drm_encoder *encoder)  in exynos_dpi_create_connector()  argument
95 	struct exynos_dpi *ctx = encoder_to_dpi(encoder);  in exynos_dpi_create_connector()
96 	struct drm_connector *connector = &ctx->connector;  in exynos_dpi_create_connector()
99 	connector->polled = DRM_CONNECTOR_POLL_HPD;  in exynos_dpi_create_connector()
101 	ret = drm_connector_init(encoder->dev, connector,  in exynos_dpi_create_connector()
105 		DRM_DEV_ERROR(ctx->dev,  in exynos_dpi_create_connector()
111 	drm_connector_attach_encoder(connector, encoder);  in exynos_dpi_create_connector()
116 static void exynos_dpi_mode_set(struct drm_encoder *encoder,  in exynos_dpi_mode_set()  argument
122 static void exynos_dpi_enable(struct drm_encoder *encoder)  in exynos_dpi_enable()  argument
124 	struct exynos_dpi *ctx = encoder_to_dpi(encoder);  in exynos_dpi_enable()
126 	if (ctx->panel) {  in exynos_dpi_enable()
127 		drm_panel_prepare(ctx->panel);  in exynos_dpi_enable()
128 		drm_panel_enable(ctx->panel);  in exynos_dpi_enable()
132 static void exynos_dpi_disable(struct drm_encoder *encoder)  in exynos_dpi_disable()  argument
134 	struct exynos_dpi *ctx = encoder_to_dpi(encoder);  in exynos_dpi_disable()
136 	if (ctx->panel) {  in exynos_dpi_disable()
137 		drm_panel_disable(ctx->panel);  in exynos_dpi_disable()
138 		drm_panel_unprepare(ctx->panel);  in exynos_dpi_disable()
158 	struct device *dev = ctx->dev;  in exynos_dpi_parse_dt()
159 	struct device_node *dn = dev->of_node;  in exynos_dpi_parse_dt()
162 	ctx->panel_node = of_graph_get_remote_node(dn, FIMD_PORT_RGB, 0);  in exynos_dpi_parse_dt()
164 	np = of_get_child_by_name(dn, "display-timings");  in exynos_dpi_parse_dt()
171 		vm = devm_kzalloc(dev, sizeof(*ctx->vm), GFP_KERNEL);  in exynos_dpi_parse_dt()
173 			return -ENOMEM;  in exynos_dpi_parse_dt()
181 		ctx->vm = vm;  in exynos_dpi_parse_dt()
186 	if (!ctx->panel_node)  in exynos_dpi_parse_dt()
187 		return -EINVAL;  in exynos_dpi_parse_dt()
192 int exynos_dpi_bind(struct drm_device *dev, struct drm_encoder *encoder)  in exynos_dpi_bind()  argument
196 	drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_TMDS);  in exynos_dpi_bind()
198 	drm_encoder_helper_add(encoder, &exynos_dpi_encoder_helper_funcs);  in exynos_dpi_bind()
200 	ret = exynos_drm_set_possible_crtcs(encoder, EXYNOS_DISPLAY_TYPE_LCD);  in exynos_dpi_bind()
204 	ret = exynos_dpi_create_connector(encoder);  in exynos_dpi_bind()
206 		DRM_DEV_ERROR(encoder_to_dpi(encoder)->dev,  in exynos_dpi_bind()
208 		drm_encoder_cleanup(encoder);  in exynos_dpi_bind()
222 		return ERR_PTR(-ENOMEM);  in exynos_dpi_probe()
224 	ctx->dev = dev;  in exynos_dpi_probe()
232 	if (ctx->panel_node) {  in exynos_dpi_probe()
233 		ctx->panel = of_drm_find_panel(ctx->panel_node);  in exynos_dpi_probe()
234 		if (IS_ERR(ctx->panel))  in exynos_dpi_probe()
235 			return ERR_CAST(ctx->panel);  in exynos_dpi_probe()
238 	return &ctx->encoder;  in exynos_dpi_probe()
241 int exynos_dpi_remove(struct drm_encoder *encoder)  in exynos_dpi_remove()  argument
243 	struct exynos_dpi *ctx = encoder_to_dpi(encoder);  in exynos_dpi_remove()
245 	exynos_dpi_disable(&ctx->encoder);  in exynos_dpi_remove()